99 lines
3.0 KiB
C
99 lines
3.0 KiB
C
/* asmPrv.h - Private x86 assembler header */
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/*
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* Copyright (c) 2012-2014 Wind River Systems, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __INCsysX86AsmPrvh
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#define __INCsysX86AsmPrvh
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#include <arch/x86/asm.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Macro to generate name of stub from name of handler */
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#define MK_STUB_NAME(h) h##Stub
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/**
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* @brief Assembler version of the NANO_CPU_INT_REGISTER macro.
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*
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* See arch.h for details
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*
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* @param handler Routine to be connected
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* @param irq IRQ number
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* @param priority IRQ priority
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* @param vector Interrupt Vector
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* @param dpl Descriptor Privilege Level
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*/
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#define NANO_CPU_INT_REGISTER_ASM(handler, irq, priority, vector, dpl) \
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.section ".intList"; \
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MK_ISR_NAME(handler) : .long MK_STUB_NAME(handler); \
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.long irq; \
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.long priority; \
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.long vector; \
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.long dpl;
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#define NANO_CPU_EXC_CONNECT_CODE(h) \
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call _ExcEnt; \
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call h; \
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jmp _ExcExit;
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#define NANO_CPU_EXC_CONNECT_NO_ERR_CODE(h) \
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pushl $0; \
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call _ExcEnt; \
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call h; \
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jmp _ExcExit;
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/**
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*
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* @brief To generate and register an exception stub
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*
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* Generates an exception stub for the handler, @a h. It is registered
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* on the vector given by @a v with the privilege level @a d; @a d should always
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* be 0.
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*
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* Use this version of the macro if the processor pushes an error code for the
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* given exception.
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*/
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#define NANO_CPU_EXC_CONNECT(h, v, d) \
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NANO_CPU_INT_REGISTER_ASM(h, -1, -1, v, d) GTEXT(MK_STUB_NAME(h)); \
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SECTION_FUNC(TEXT, MK_STUB_NAME(h)) NANO_CPU_EXC_CONNECT_CODE(h)
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/**
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*
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* @brief To generate and register an exception stub
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*
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* Generates an exception stub for the handler, @a h. It is registered
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* on the vector given by @a v with the privilege level @a d; @a d should always
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* be 0.
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*
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* Use this version of the macro if the processor doesn't push an error code for
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* the given exception. The created stub pushes a dummy value of 0 to keep the
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* exception stack frame the same.
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*/
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#define NANO_CPU_EXC_CONNECT_NO_ERR(h, v, d) \
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NANO_CPU_INT_REGISTER_ASM(h, -1, -1, v, d) GTEXT(MK_STUB_NAME(h)); \
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SECTION_FUNC(TEXT, MK_STUB_NAME(h)) \
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NANO_CPU_EXC_CONNECT_NO_ERR_CODE(h)
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#ifdef __cplusplus
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}
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#endif
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#endif /* __INCsysX86AsmPrvh */
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